Liquid-fuel burner.



No. 636,756. Patented Nov. I4, |899'. A. CARLSTRUM. L'IllUlD FUEL BURNER.

(Application led Oct. 29, 1897.)

(No Model.)

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UNITED STATES PATENT OFFICE.

ALLGOTT CARLSTROM, OF CHICAGO, ILLINOIS.

LIQUID-FUEL BURNER.

SPECIFICATION forming part of Letters Patent No. 636,756, dated November 14, 1899.

Application filed October 29, 1897. Serial No. 656,738. (No model.)

To a/ZZ whom, it may concern,.-

Be it known that I, ALLGOTT CARLsTRoM, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Liquid Fuel Burners, of which the following is a specification.

The object of my invention is to provide a simple, economical, and efficient fuel-burner for use in connection with apparatus using kerosene-oil as liquid fuel; and the invention consists in the features, combinations, and details of construction hereinafter` described and claimed.

In the accompanying drawings, Figure lis a vertical sectional elevation of a burner constructed in accordance With my improvements, taken on the line l of Fig. 2; and Fig. 2 is a similar view taken on the line 2 of Fig. 1.

In constructing a burner in accordance with my improvements I make a ring portion A of the desired size and shape and provide it with an annular chamber a, in which the liquid fuel may circulate for the purpose of conversion into vapor, as hereinafter described. This annular chamber is connected with a source of fuel-supply, preferably by means of a Y-shaped supply-pipe B, having a supply-channel b located therein. The base portion of this supplypipe is provided with a threaded portion b', by which itmay be secured to or connected in any suitable manner with the fuel-supply pipe or reservoir, as may be desired.

When the liquid fuel in the annular cham ber has been converted into vapor, it is desirable to convey it therefrom as simply as possible to a point forignition, and in order to accomplish this result a U-shaped or loop portion C is provided, having a channel c connected With the annular chamber. This loop portion is provided at or nearits central portion with a burner-tip C', having an aperture c', through which the vapor may issue and be ignited, if desired. l

In order to economically and efficiently convert the liquid fuel into a vapor, the portion inside of the annular chamber is formed in the shape of a circular opening, screw-threaded as at a. In this threaded opening is secured a cap portion D, which also has its outer shell or walls bearing against the ring, so as to provide an annulaiheatingchamber d adjacent to the annular chamber of the ring. This annular heating-chamber is provided for the purpose of retaining a quantity of the heat to assist in heating the annular chamber a for the liquid fuel and to protect the wall of such chamber from direct contact with the burning vapor. This cap is inclosed by means of a second cap E, which is suitably secured on the burner, so as to provide an annular chamber c between it and the primary cap, into which the vapor, after it has been formed, may pass before being ignited. The periphery of the secondary cap is perforated, as at c', at its lower portion, so that the vapor when formed may issue therefrom and be ignited. A deflecting-cup G is provided, which partially incloses both of the caps and compels the iiame when ignited to issue in an upward manner and against the article Which it is desired to heat.

In use the liquid fuel is placed under pres sure by atmospheric air or water and compelled to enter the su pply-channel and is converted into vapor by means of a supplementary heater, (not shown,) so that it issues from the tip c' in a gaseous state. As soon as the vapor issues through the tip it passes up through the central opening c2, following the direction of the arrow, into the chamber e, passes out through the perforations e', where it is ignited, and serves to heat any desired article.

I claimg- 1. In a kerosene-oil burner, the combinaL tion of a main portion provided with an annular chamber adapted to be connected with a source of oil-supply, a primary cap arranged so as to provide an annular heating-chamber adjacent to and assist in heating the annular oil-chamber and having a central vertical conduit therethrough, a pipe connected with the annular oil-chamber and having an open ing arranged directly under the central conduit of the inclosing cap, and a second perforated cap inclosing the first-named cap and providing an annular vaponchamber between it and the first-named cap through which the Vapor must pass for the purpose of ignition, substantially as described.

2. In a kerosene-oil burner, the combina-l tion of a main portion provided with an annular liquid-fuel chamber, a Y-shaped pipe for connecting the annular chamber with a source of oil-supply, a loop portionarranged transverselywith the Y-shaped pipe and connected with the annular oil-chamber and having a Vertical outlet arranged in the central portion thereof, a primary cap provided with a central vertical conduit arranged on the main portion so as to provide an annular heatingchamber adjacent to the annular oilchainber to assist in heating the same, a second cap having perforations in its periphery arranged on the main portion outside of the primary cap so as to provide an annular chamber through which the vapor must pass from the loop before it is ignited, and a cupshaped delecting portion, substantially as described.

3. In a vapor-burner, the combination of a main portion provided With an annular vap- ALLGOTT CARLSTROM.

Witnesses:

THOMAS F. SHERIDAN, THOMAS B. McGREGoP.. 

